102204513 has 12 divisors (see below), whose sum is σ = 151229988. Its totient is φ = 66474240.

The previous prime is 102204503. The next prime is 102204517. The reversal of 102204513 is 315402201.

It can be written as a sum of positive squares in 2 ways, for example, as 52881984 + 49322529 = 7272^2 + 7023^2 .

It is not a de Polignac number, because 102204513 - 2⁹ = 102204001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102204517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138120 + ... + 138857.

It is an arithmetic number, because the mean of its divisors is an integer number (12602499).

Almost surely, 2^102204513 is an apocalyptic number.

It is an amenable number.

102204513 is a deficient number, since it is larger than the sum of its proper divisors (49025475).

102204513 is a wasteful number, since it uses less digits than its factorization.

102204513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277024 (or 277021 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102204513 is about 10109.6247704848. The cubic root of 102204513 is about 467.5449362470.

Adding to 102204513 its reverse (315402201), we get a palindrome (417606714).

The spelling of 102204513 in words is "one hundred two million, two hundred four thousand, five hundred thirteen".